1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
andrezito [222]
4 years ago
6

In which situations is elastic potential energy present? Check all that apply. A bow is drawn back from its equilibrium position

. An arrow rests on a bow. A spring toy dart gun is unloaded. A spring toy dart gun is loaded with a dart. A bungee cord is connected to a tall tower. A bungee cord is stretched with a person at the end.
Physics
2 answers:
Simora [160]4 years ago
6 0
1,4,6
a bow is drawn back
a gun is loaded w/ a dart
a bungee cord is stretched
scoray [572]4 years ago
5 0
Elastic Potential Energy is present in the following:
1. A bow is drawn back from its equilibrium position.
2. A spring toy dart gun is loaded with a dart.
3. A bungee cord is stretched with a person at the end.
You might be interested in
What is the average translational KE of 5 moles of gas molecules at 300 K?
aev [14]

Answer:

What is the average translational kinetic energy of molecules in an ideal gas at 37°C? The average translational energy of a molecule is given by the equipartition theorem as, E = 3kT 2 where k is the Boltzmann constant and T is the absolute temperature.

Explanation:

The average translational energy of a molecule is given by the equipartition theorem as, E = 3kT 2 where k is the Boltzmann constant and T is the absolute temperature.

7 0
3 years ago
A mass attached to a spring oscillates in simple harmonic motion with an amplitude of 10 cm. When the mass is 5.0 cm from its eq
timama [110]

When the mass is 5.0 cm from its equilibrium point, the percentage of its energy that is kinetic is 75%.

<h3>Total energy of the mass</h3>

The total energy possessed by the mass under the simple harmonic motion  is calculated as follows;

U = ¹/₂kA²

where;

  • k is the spring constant
  • A is the amplitude of the oscillation
<h3>Potential energy of the mass at 5 cm from equilibrium point</h3>

P.E = ¹/₂k(Δx)²

<h3>Kinetic energy of mass</h3>

K.E = U - P.E

K.E = ¹/₂kA² - ¹/₂k(Δx)²

<h3>Percentage of its energy that is kinetic</h3>

K.E (\%) = \frac{U - P.E}{U} \times 100\%\\\\K.E (\%) =\frac{\frac{1}{2}kA^2 - \frac{1}{2}k(\Delta x)^2 }{\frac{1}{2}kA^2} \times 100\%\\\\K.E (\%) = \frac{A^2 - (\Delta x)^2}{A^2} \times 100\%\\\\K.E (\%) = \frac{10^2 - (10-5)^2}{10^2} \times 100\%\\\\K.E (\%) = \frac{10^2 - 5^2}{10^2} \times 100\%\\\\K.E (\%) = 75\%

Thus, when the mass is 5.0 cm from its equilibrium point, the percentage of its energy that is kinetic is 75%.

Learn more about kinetic energy here: brainly.com/question/25959744

3 0
2 years ago
A cat walks along a plank with mass M= 6.00 kg. The plank is supported by two sawhorses. The center of mass of the plank is a di
dimulka [17.4K]

Answer:

d₂ = 1.466 m

Explanation:

In this case we must use the rotational equilibrium equations

        Στ = 0

        τ = F r

we must set a reference system, we use with origin at the easel B and an axis parallel to the plank , we will use that the counterclockwise ratio is positive

      + W d₁ - w_cat d₂ = 0

      d₂ = W / w d₁

      d₂ = M /m d₁

      d₂ = 5.00 /2.9    0.850

      d₂ = 1.466 m

6 0
4 years ago
Care din propozitiile de mai jos sunt propozitii simple si care sunt propozitii dezvoltate? Argumentati oral raspunsurile a) mâț
Nataliya [291]

Answer:

a) developed

b) simple

c) simple

d) developed

e) developed

f) developed

Question:

Which of the following sentences are simple sentences and which are developed sentences? Orally argue the answers

a) the cat scribbled the little girl.

b) Grandma will cook

c) The cat will spin

d) You don't love cats?

e) in one jump, the cat will be at the window

f) we will never arrived on time

Explanation:

To differentiate the simple sentences from the developed sentences, let's understand what they are.

A Simple sentence is a sentence that contain a subject and a predicate. The sentence is complete in thought.

A developed sentence is a sentence that contain a subject, predicate as well as other parts of sentence.

a) the cat scribbled the little girl (developed)

b) Grandma will cook (simple)

c) The cat will spin (simple)

d) You don't love cats? (developed)

e) in one jump, the cat will be at the window (developed)

f) we will never arrived on time (developed)

Hence option b and c are simple sentences, while options a, d, e and f are developed.

6 0
3 years ago
A 68 kg deer has a momentum of 952 kg∙m/s. What is its velocity?
Gwar [14]

All we need to do is divide the momentum and weight to find the velocity:

v = m / w

Solve using the values we are given.

v = 952/68 = 14 m/s

Best of Luck!

5 0
3 years ago
Other questions:
  • A spring is used to launch a coffee mug. The 20cm long spring can be compressed by a maximum of 8cm. The mug has a mass of 350 g
    5·2 answers
  • A 300 g glass thermometer initially at 32 ◦C is put into 157 cm3 of hot water at 95 ◦C. Find the final temperature of the thermo
    11·1 answer
  • A car drove 200 km east on an interstate highway, then was finally able to make an
    8·1 answer
  • What happens to the diffraction pattern when the number of lines per centimeter of a diffraction grating is increased?
    11·1 answer
  • Ceres, the largest asteroid known, has a mass of roughly 8.7 x1020 kg. If Ceres passes within 12,000km of the spaceship (2.75e4k
    15·1 answer
  • The heat of fusion for water is 334 kJ/kg. How much thermal energy is required to
    15·1 answer
  • A 2.2-kg block slides on a horizontal surface with a speed of v=0.80m/s and an
    7·1 answer
  • Juan rides his horse with a constant<br> speed of 18 km/h. How far can he travel<br> in 1/2 hour?
    10·1 answer
  • Choose:-
    15·1 answer
  • How did harlow shapley conclude that the sun was not in the center of the milky way galaxy?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!